diff --git a/index.html b/index.html
index b937e3a..6dd7c1c 100644
--- a/index.html
+++ b/index.html
@@ -81,6 +81,25 @@
             bottom: 0;
             width: 40px;
         }
+   #chart_container_op {
+        position: relative;
+        width: 350px;
+            height: 50px;
+            font-family: Arial, Helvetica, sans-serif;
+            float:right;
+        text-align: center;
+        font-size: .85em;
+        }
+   #opchart {
+            position: relative;
+            left: 40px;
+        }
+   #y_axis_op {
+            position: absolute;
+            top: 0;
+            bottom: 0;
+            width: 40px;
+        }
     #menu {
         list-style: none;
         margin: 0;
@@ -138,6 +157,11 @@
         <div id="iopschart"></div>
         Read : {{ read | bytes:kB }}/s , Write : {{ write | bytes:kB }} , Recovery : {{ recovery | bytes:kB }}/s
     </div>
+    <div id="chart_container_op">
+        <div id="y_axis_op"></div>
+        <div id="opchart"></div>
+	Read_op : {{ read_op }}/s, Write_op : {{ write_op }}/s
+    </div>
     <h2>Cluster health at {{date | date:'HH:mm:ss'}}</h2>
     <div class="health_summary health_status_{{health.severity}}">
         <!-- showing warn or error details -->
diff --git a/scripts/statusApp.js b/scripts/statusApp.js
index 1491458..1ea522f 100644
--- a/scripts/statusApp.js
+++ b/scripts/statusApp.js
@@ -57,6 +57,32 @@ StatusApp.controller("statusCtrl", function ($rootScope, $scope, $http , $cookie
     yAxis.render();
     graph.render();
 
+    var graph_op = new Rickshaw.Graph( {
+        element: document.getElementById("opchart"),
+        width: 300,
+        height: 30,
+        renderer: 'line',
+        series: new Rickshaw.Series.FixedDuration([{ name: 'read_op' },{ name: 'write_op' }], undefined, {
+            timeInterval: 3000,
+            maxDataPoints: 100,
+            timeBase: new Date().getTime() / 1000
+        })
+    } );
+    var hoverDetail_op = new Rickshaw.Graph.HoverDetail( {
+        graph: graph_op,
+        xFormatter: function(x) { return  ""; },
+        yFormatter: function(y) { return  y + "/s" ;}
+    } );
+    var yAxis_op = new Rickshaw.Graph.Axis.Y({
+        graph: graph_op,
+        height: 30,
+        orientation: 'left',
+        tickFormat: Rickshaw.Fixtures.Number.formatKMBT,
+        element: document.getElementById('y_axis_op')
+    });
+    yAxis_op.render();
+    graph_op.render();
+
     //refresh data every x seconds
     refreshData();
     refreshPGData();
@@ -121,12 +147,20 @@ StatusApp.controller("statusCtrl", function ($rootScope, $scope, $http , $cookie
                 $scope.read = (data.output.pgmap.read_bytes_sec ? data.output.pgmap.read_bytes_sec : 0);
                 $scope.write = (data.output.pgmap.write_bytes_sec ? data.output.pgmap.write_bytes_sec : 0);
                 $scope.recovery = (data.output.pgmap.recovering_bytes_per_sec ? data.output.pgmap.recovering_bytes_per_sec : 0);
+                $scope.read_op = (data.output.pgmap.read_op_per_sec ? data.output.pgmap.read_op_per_sec : 0);
+                $scope.write_op = (data.output.pgmap.write_op_per_sec ? data.output.pgmap.write_op_per_sec : 0);
 
                 var iopsdata = { read: $scope.read , write : $scope.write , recovery : $scope.recovery };
+                var opdata = { read_op: $scope.read_op, write_op : $scope.write_op };
+
                 graph.series.addData(iopsdata);
                 yAxis.render();
                 graph.render();
 
+                graph_op.series.addData(opdata);
+                yAxis.render();
+                graph_op.render();
+
                 $scope.health = {};
                 $scope.health.severity = data.output.health.overall_status;
                 // there may be several messages under data.output.health.summary